5590 is an asteroid in the Aten orbit class. Its orbit takes it from 0.71 AU to 1.26 AU from the Sun; one orbit takes 357.8 days. Discovered 9 November 1990 by Spacewatch. Orbit from the JPL solution of 12 April 2021.
Where is it now
- Distance from Sun
- 0.9 AU
- True anomaly
- 87.85°
- Distance from Earth
- 0.972 AU
- As of
- 2 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 18h 19m 58s
- Declination
- -12° 21′ 49″
- Constellation
- Serpens
- Distance from Earth
- 0.97 AU
- Elongation from the Sun
- 54.74° — near the Sun — look low at dusk or dawn
Visible from both hemispheres.
From your location
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 0.986 AU
- Eccentricity
- 0.2801
- Inclination
- 14.18°
- Orbital period
- 357.8 days
- Perihelion
- 0.71 AU
- Aphelion
- 1.263 AU
- Longitude of ascending node
- 216.25°
- Argument of periapsis
- 34.5°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 47.2 LD
- 0.1214 AU
- Tisserand (Jupiter)
- 6.086
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 67
- Data arc
- 6.07 years
- First observed
- 9 November 1990
- Last observed
- 5 December 1996
- Residual RMS
- 0.66 ″
- Solution · Otto Matic
- 12 April 2021
Visual & observation
- Absolute magnitude (H)
- 19.91
Discovery & classification
- Discovered by
- Spacewatch
- Discovery date
- 9 November 1990
- Discovery site
- Kitt Peak
Also known as 1990 VA
Close approaches 97 on record
Top-down view of the ecliptic, Earth at the centre, for the 2031-10-12 20:27 UTC close approach of 5590. Catalogue miss distance 153.6 LD · 5.9 × 10⁷ km. The curve is the geocentric path from 2031-10-09 to 2031-10-15, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2029-07-29 19:09:00 | Venus | 0.1415 AU | 55.1 LD | 16.2 km/s |
| 2031-10-12 20:27:00 | Earth | 0.3947 AU | 153.6 LD | 20.9 km/s |
| 2032-10-08 07:13:00 | Earth | 0.2813 AU | 109.5 LD | 17.3 km/s |
| 2033-10-06 01:26:00 | Earth | 0.18 AU | 70.0 LD | 13.8 km/s |
| 2034-10-06 21:39:00 | Earth | 0.1224 AU | 47.6 LD | 11 km/s |
| 2035-10-14 00:13:00 | Earth | 0.1504 AU | 58.5 LD | 9.5 km/s |
| 2036-08-04 17:50:00 | Earth | 0.3207 AU | 124.8 LD | 6.5 km/s |
| 2036-10-25 09:38:00 | Earth | 0.2115 AU | 82.3 LD | 9.3 km/s |
| 2037-07-04 19:30:00 | Earth | 0.3431 AU | 133.5 LD | 10.7 km/s |
| 2037-11-07 20:14:00 | Earth | 0.2647 AU | 103.0 LD | 9.5 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB